PETREL. 107 



These inhabit the Southern Ocan, from 47 to 08 cleg, of latitude, 

 and fly in flocks. Capt. Cook supposed them to be the females of 

 the Broad-billed, but the bill has no degree of breadth to justify it ; 

 and the colours of the plumage, on comparison, immediately detect 

 the difference. 



29— PACIFIC PETREL. 



Procellaria pacifica, Ind. Orn. ii. 827. Gm. Lin. i. 560. 

 Pacific Petrel, Gen. Si/n. vi. 416. 



LENGTH twenty-two inches, breadth forty. Bill two inches 

 long, lead-coloured, and much hooked at the tip ; in the place of 

 the tube the nostrils only appear, they are situated obliquely, of an 

 oval shape, a little elevated, and placed one inch and a quarter from 

 the base ; plumage on all the upper parts black, on the under dusky; 

 legs pale on the insteps, marked with some black spots, and a few 

 others on the toes and webs. 



Inhabits Euopoa, and other Islands of the Pacific Ocean. Said 

 to fly in flocks innumerable ; disappear all at once, dipping under 

 water all together, and then rising as suddenly. 



30— DUSKY PETREL. 



Procellaria obscura, Ind. Orn. ii. 828. Gm. Lin. i. 559. Tern. Alan. Ed. 2d. p. SOS. 



Gerin. v. pi. 538. 

 Dusky Petrel, Gen. Syn. vi. 416. Arct. Zool. ii. Sup. p. 73. 



LENGTH thirteen inches. Bill one inch and a half, colour 

 black, with horn-coloured sides, point hooked ; in the usual place 

 only two small holes, serving for nostrils ; the upper parts of the 

 body dusky black, the under white ; on the sides of the neck brown 

 and white mixed ; the edges of the middle wing coverts are whitish ; 



.y; 



